Greater London · TR19 inspections and grease testing
Biggin Hill TR19 inspection
We cover Biggin Hill for TR19 inspections, grease thickness testing, pre-clean surveys and post-clean verification. Fixed quotes, work around your opening hours and photo reports as standard.
- Parts of the system left out of past cleans
- Heavy grease suspected in the plenum or ducts
- Pre-clean surveys before a first TR19 clean
How the job changes from site to site
Horizontal duct runs
Grease settles on the floor of horizontal ducts as the air cools. We test at points along the run through access panels.
Vertical risers
Risers in multi-storey buildings can pass through other areas, so access is planned in advance.
TR19 inspection in Biggin Hill
A grease test measures how thick the grease is inside a kitchen extract system. Readings are taken at set points using the Wet Film Thickness Test (WFTT) or the Deposit Thickness Test (DTT). From the numbers, you can see whether cleaning is due. We’re often asked to deal with cleaning intervals that may not suit the kitchen and missing access panels found on survey, across post-clean checks, deposit thickness tests and insurer audits.
In a London area like Biggin Hill, a kitchen extract often passes through shared space on its way out: a riser, a service void, the floors above. Grease in a duct like that is a fire risk to the whole building, not just the kitchen, which is why keeping it clean to TR19® matters.
Duct Doctor has been trading since 2009, as a BESCA Vent Hygiene Elite member, cleaning to BESA TR19® Grease. CHAS, SafeContractor and ISO 9001 are in place too, and we carry full insurance.
- Location
- Biggin Hill (TN16, BR6)
- Wider area
- Greater London
- Paperwork
- Certificate plus before-and-after photos
- Quotes
- Fixed quote, normally within a working day
- When we work
- Overnight and weekend work, 24/7 emergency callout
- Call
- 0345 646 2711
- Checked
- 30 October 2026
Places near Biggin Hill
More services for Biggin Hill
Fixed quotes for TR19 inspection in Biggin Hill
The price is fixed before any work begins. It takes into account:
- Whether several sites go on one quote
- The condition of the system
- How easy every part is to reach
- The scale of the work
You won’t find a price list here, because the cost depends on the site in front of us. Call for a fixed quote, and we will talk you through it.
What we need to know
There’s no need for technical detail. Just send:
- The times we could work without disrupting the site
- The site address and the type of premises
- Any access panels or hatches you can see
- Where the plant sits or the system leaves the building, such as a roof or outside wall
If you need TR19 inspection in Biggin Hill, call 0345 646 2711 or email us. Tell us what kind of premises it is and when it’s open, plus pictures or the previous report if they’re to hand. A fixed quote normally follows within one working day.
Between visits
Aftercare is simple, and it makes the next visit easier:
- Wipe the canopy surfaces regularly
- Tell us if menus or opening hours change
- Keep access panels clear and unpainted
- Book the next test on the date in the report
Any access problems we found are listed with a suggested fix. Fitting them before the next clean means the whole system gets done.
Keep all TR19 records together so you can produce them quickly.
Multi-site and managed buildings
We work for landlords, managing agents and facilities managers as well as the people running the site. Where a system serves more than one tenant, such as a shared riser, it helps to agree who arranges the work, and we’re happy to quote for all of it.
When the building owner and the occupier are different, it’s worth checking the lease for who maintains the systems. We’re happy to deal with either side, and the report can go to both.
What staff can safely do
Keep a record of what your team does. A dated log of in-house cleaning and checks helps show that the system is managed between specialist visits, next to our reports.
If your staff spot something between visits, such as dripping grease, a noisy fan, a smell or a filter that will not come clean, they should report it rather than try to fix it. We will take a look and send you a fixed quote.
Common questions in Biggin Hill
Which fire service covers Biggin Hill?
Fire safety enforcement in Biggin Hill is handled by London Fire Brigade. TR19® isn’t law, but it’s the benchmark many fire officers and insurers look to when they ask how often the extract is cleaned.
Can parking be tricky for a job in Biggin Hill?
We plan it in advance, so let us know about loading bays, permits and access rules at the building. Much of our London work is done overnight, which helps.
Do you survey before quoting?
Yes. Photos often do the job, and larger or hidden systems get a visit.
Can you inspect our extract for our insurance company?
Yes, for kitchens across the South East and London. Share the insurer’s request so the report addresses it.
When should we have our next grease test?
Enough to be sure grease stays within the TR19® Grease figures between cleans. The readings themselves tell you if the interval needs to change.
What does TR19 mean?
BESA’s ventilation hygiene specification, with two parts that matter most here: TR19® Grease for kitchen extract systems and TR19® Air for general ventilation. It is not legislation, but it’s the standard people check against.
Is Biggin Hill in your area?
Yes. We work across Greater London, Surrey, Kent, Sussex, Hampshire, the Isle of Wight, Berkshire, Buckinghamshire, Oxfordshire, Hertfordshire and Essex, and that includes Biggin Hill.
What should I send you?
Only a few details: the address, the site type, your opening hours and how we reach the system. Photos and any previous paperwork make it quicker. After that, simply phone us on 0345 646 2711 or drop us a line.
How it works
A visit follows the same order every time: protect the area, isolate whatever needs isolating, carry out the TR19 inspection, tidy up and hand over the paperwork. The visit itself takes around an hour or two per canopy and duct system. Expect the work in Biggin Hill to happen after your last customer leaves, not during trading.
- We agree a time when the kitchen is closed or quiet.
- The system is checked from canopy to discharge.
- We take WFTT or DTT readings at set points along the system.
- Photos are taken at each point, and access gaps noted.
- You get a report with readings, pictures and recommendations.
How to prepare
- Clear the space around the work
- Let us know about permits to work or site inductions
- Name a contact who can let us in at the agreed time
Get a fixed quote
The quickest way to a quote is to send photos: the system from a couple of angles, plus any access panels or hatches. Tell us what kind of site it is and when it’s open, and many jobs can be priced from that alone.
Related advice
Why act early in Biggin Hill
Sites in Biggin Hill that have never measured grease can’t tell whether their cleaning interval suits the kitchen. Measured readings let a competent person set the interval. Shared walls, risers and roofs mean a problem at one London site seldom stays put.
Whatever the type of site, the quote works the same way: how much there is, how we reach it, what state it’s in and when we can work. Ask for a fixed quote and we’ll explain each part.
What you get with us
- Fixed quotes from a survey or photos
- Survey first, then a fixed quote
- Full insurance on every job
- BESCA Vent Hygiene Elite member, cleaning to BESA TR19® Grease
See how cleaning jobs are priced and our accreditations and certificates.
What TR19 inspection looks like in Biggin Hill
The Food Standards Agency lists about 3 bars, pubs and nightclubs as registered food businesses across Biggin Hill and its immediate surroundings (about a mile and a half). Any of them serving cooked food has an extract to keep clean, from canopy to discharge. London jobs normally start after the last service, with loading and roof access agreed with the building first. Biggin Hill sits within the area of London Fire Brigade. Fire and rescue authorities enforce the Fire Safety Order in most non-domestic premises, and in a kitchen that fire risk includes the grease in the extract.
If you run catering at a historic house or estate in the area (Down House is about 1.7 miles north-east), event kitchens in older buildings often have awkward duct runs that need planning. If you run a church or community hall kitchen, near St Mark's Church or elsewhere in Biggin Hill, its extract still collects grease from every lunch and event. If you run catering at a healthcare site, such as a hospital like Warlingham Park Hospital about 2.7 miles west, the extract may need cleaning more often than a part-time kitchen.
Biggin Hill is about 6 miles east of Caterham, in Greater London. Every kind of commercial site in Biggin Hill, TR19 inspection is something we can help with. Visits can be booked for evenings, overnight or weekends so trading isn’t interrupted. Our area takes in 764 places across Greater London, from busy centres to quieter spots. For sites nearby, see our London page (14 miles or so).
Every address in TN16 and BR6 is covered for TR19 inspection, from busy streets to back roads. Whether your site is on Rushdene Walk, Mount Pleasant and Stock Hill or anywhere close by, our technicians can take on the work. Being close to the A233, Biggin Hill is simple for us to get to at any hour. Neighbouring places we cover for TR19 inspection include Aperfield (1 mile south-east), Luxted (1 mile north-east), Berry's Green (1 mile east), Single Street (1 mile east) and Leaves Green (2 miles north). We also work in nearby towns such as London (14 miles north-west), Whitechapel (15 miles north), Brompton (15 miles north-west), Stockwell (13 miles north-west), Orpington (6 miles north-east) and Wimbledon (13 miles north-west).
Near you in Biggin Hill
We work in commercial kitchens and buildings around Charles Darwin School. Biggin Hill’s nearest station is Woldingham station, about 3.8 miles south-west. A little further out are Warlingham Park Hospital (2.7 miles west). For a walk, there’s Betsom's Hill and West Kent Golf Course nature reserve.